SEC Eyes Rules to Fight Trading Glitches

By

Jessica Holzer

Updated March 7, 2013 5:00 p.m. ET

WASHINGTON—The Securities and Exchange Commission took a step to curtail the chance computer glitches disrupt markets, proposing rules that also would impose standards for the electronic architecture of private trading venues known as dark pools.

The proposal, approved unanimously on Thursday, would boost safeguards that exchanges and clearinghouses have followed on a voluntary basis since shortly after the 1987 stock-market crash....